<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>box</title>
</head>
<body>
    <div style="width: 100px;height: 50px; border: 1px solid rgb(214, 211, 13);background:rgb(18, 209, 12);  margin: 50px; float: left "></div>
    <div style="width: 100px;height: 50px; border: 1px solid red;background:paleturquoise;margin: 50px; float: left;"></div>
    <br><br><br><br><br><br><br><br><br><br>
    <div style="width: 100px;height: 50px; border: 1px solid rgb(214, 211, 13);background:rgb(18, 209, 12);  margin: 50px;"></div>
    <div style="width: 100px;height: 50px; border: 1px solid red;background:paleturquoise;margin: 50px;"></div>
    <br><br><br><br><br><br><br><br><br><br>
    <div style="width: 100px;height: 70px;background:rgb(18, 209, 12);  margin: 50px;">
        <div style="width: 80px;height: 30px; border: 1px solid red;background:paleturquoise;margin: 50px;"></div>
    </div>
    <div style="border: 1px solid ">
        <div style="border: 1px solid "></div>
    </div>
    <br><br><br><br><br><br><br><br><br><br>
</body>
</html>